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Finding the Fourth Proportional to 527,585.03, 728,080.90 and 323,748.58

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Solution

The fourth proportional to 527,585.03, 728,080.90 and 323,748.58 is: 446,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,585.03 : 728,080.90 = 323,748.58 : x
  2. Step 2: Convert to fraction form
    527,585.03/728,080.90 = 323,748.58/x
  3. Step 3: Cross multiply
    527,585.03x = 728,080.90 × 323,748.58
  4. Step 4: Simplify right side
    527,585.03x = 235,715,157,500.12
  5. Step 5: Solve for x
    x = 235,715,157,500.12/527,585.03
  6. Step 6: Final answer
    x = 446,781.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.